Flat belt pulley for small hack-saw
 

Need a flat belt pulley to put on a small hacksaw to run off the Lister D.
-Hole in centre needs to be about 15mm diameter.
-belt pulley itself, from roughly 150-200mm diameter.
-60mm wide
-spoked or solid

OR

A v-belt pulley that could be converted to a flat belt.

why not just make a wooden one?